ONOMATOPOETIC Scrabble 19 Words With Friends 23 Definition adjective of or relating to or characterized by onomatopoeia. — synonyms: onomatopoeic adjective (of words) formed in imitation of a natural sound. — synonyms: echoic, imitative, onomatopoeic, onomatopoeical See all 491 words you can make from ONOMATOPOETIC → 13-letter words Words starting with O Words ending with C ← Unscramble different letters